[cvs] / xvidcore / src / plugins / plugin_lumimasking.c Repository:
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revision 1.1, Sun Mar 16 12:05:09 2003 UTC revision 1.1.2.2, Mon Jun 9 13:55:07 2003 UTC
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1    /*****************************************************************************
2     *
3     *  XVID MPEG-4 VIDEO CODEC
4     *  - XviD plugin: performs a lumimasking algorithm on encoded frame  -
5     *
6     *  Copyright(C) 2002-2003 Peter Ross <pross@xvid.org>
7     *               2002      Christoph Lampert <gruel@web.de>
8     *
9     *  This program is free software ; you can redistribute it and/or modify
10     *  it under the terms of the GNU General Public License as published by
11     *  the Free Software Foundation ; either version 2 of the License, or
12     *  (at your option) any later version.
13     *
14     *  This program is distributed in the hope that it will be useful,
15     *  but WITHOUT ANY WARRANTY ; without even the implied warranty of
16     *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17     *  GNU General Public License for more details.
18     *
19     *  You should have received a copy of the GNU General Public License
20     *  along with this program ; if not, write to the Free Software
21     *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
22     *
23     * $Id$
24     *
25     ****************************************************************************/
26    
27    #include "../xvid.h"
28    #include "../image/image.h"
29    #include "../quant/adapt_quant.h"
30    
31    int xvid_plugin_lumimasking(void * handle, int opt, void * param1, void * param2)
32    {
33        switch(opt)
34        {
35        case XVID_PLG_INFO :
36            {
37            xvid_plg_info_t * info = (xvid_plg_info_t*)param1;
38            info->flags = XVID_REQDQUANTS;
39            return 0;
40            }
41    
42        case XVID_PLG_CREATE :
43        case XVID_PLG_DESTROY :
44            return 0;
45    
46    
47        case XVID_PLG_BEFORE :
48            {
49            xvid_plg_data_t * data = (xvid_plg_data_t*)param1;
50                 data->quant =
51                        adaptive_quantization(data->current.plane[0], data->current.stride[0],
52                                              data->dquant,
53                                      data->quant /* framequant*/,
54                                      data->quant /* min_quant */,
55                                                              data->quant*2 /* max_quant */,
56                                                              data->mb_width, data->mb_height);
57    
58            return 0;
59           }
60    
61        case XVID_PLG_AFTER :
62           return 0;
63        }
64    
65        return XVID_ERR_FAIL;
66    }
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